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Drawcall batching by FSDS

sunayk

sunayk

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170
The drawcall batching in FSX SP2 was discussed for Gmax on the other tread
http://www.wiki.fsdeveloper.com/forum/showthread.php?t=16317

In Gmax for batching to work the Gmax created mdl file has to be reprocessed by ModelconverterX (to avoid the .xanim flag)

Does anyone can confirm that a mdl file created via FSDS
-provided that SP2 SDK/Xtomdl is used
- and there is no .xanim file in the FSDS root directory/No animation/No LODs used
will produce drawcall batching ?

I think so, but haven't tested it.
 
Hi,

I don't use FSDS myself, so I am not sure how it uses XtoMDL to compile the MDL. But if somebody has a sample FSDS MDL, I can check how it was compiled.
 
Hi Arno
Here is a simple cube with no textures
H_Farfy:D:D
 
Last edited:
That one should give drawcall batching. So I guess it is save to assume that FSDS will give you objects that have drawcall batching automatically.

Not sure what happens with objects with LODs though. If the LODs work, the batching does not.
 
Thank you Arno and Scott. I made a simple test, build up a scenery group of about 300k tverts, compiled with both FSDS and that run it through MCX, and compared the fps and couldn't see a noticeable difference.

I actually scared me to see that a 300k tvert scenery "but with only one drawcall" barely changed the fps in FSX SP2 in my rig.
Have to keep the drawcalls under control while designing :)
 
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